Sale Of Vision Bank Business (Schedule Of Balance Sheet Of SEPH) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Sep. 30, 2012 SEPH [Member]	Mar. 31, 2012 SEPH [Member]	Sep. 30, 2012 Performing Loan [Member] SEPH [Member]	Mar. 31, 2012 Performing Loan [Member] SEPH [Member]	Sep. 30, 2012 Nonperforming Loan [Member] SEPH [Member]	Mar. 31, 2012 Nonperforming Loan [Member] SEPH [Member]
Cash				$ 9,026	$ 16,049
Loans						9,631	16,123	58,838	82,326
Other real estate owned	35,633	42,272		21,934	28,578
Other assets	122,097	120,748		16,763	18,417
Total assets	6,752,938	6,972,245	7,095,098	116,192	161,493
Intercompany borrowings				98,000	140,000
Other liabilities	108,744	61,639		3,293	4,623
Equity				14,899	16,870
Total liabilities and stockholders' equity	$ 6,752,938	$ 6,972,245		$ 116,192	$ 161,493